21. Who is the man a blue shirt? I have never seen him before.
A. is wearing B. dressed up C. dressed in D. worn
22. （签证）. So thank you again. once before, after your class I got my visa
A. Having rejected B. Rejected C. Being rejected D. To be rejected
23. The police will have to the room for fingerprints.
A. check B. examine C. clean D. analyze
